Valve.



E. F. FITZGERALD.

VALVE.

APPLICATION FILED FEB.6,1913.

1,093,121. Patented Apr. 14, 1914.

g rIt VALVE.

Specification of Letters Patent.

Patented Apr. 14, 1914.

Application filed. February 6, 1913. Serial No. 746,633.

To all whom it may concern Be it known that I, EDWARD F. FITZGER- ALD, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Valves, of which the following is a specification.

My invention relates to new and useful improvements in valves, and is designed for use more especially in connection with the valve shown and described in my patent application, Serial Number 644,740 filed August 18th, 1911.

One of the objects of my invention is to provide a cap which is secured to the valve stem outside of the valve casing, said cap carrying means for limiting the movements of the valve plug thereby indicating when the valve is shut off or opened.

Another object of the invention is to provide the cap with two stops, one of which is stationary and the other adjustable, the adjustable stop being used to indicate what portion of the outlet of the valve plug is in communication with the outlet of the valve casing.

A further object of the invention is to construct the cap in such a manner that the adjustable stop; will be protected and prevented from coming in contact with exterior obstructions.

A still further object of the invention is to provide a filter for the steam which will separate the water therefrom and prevent said water from passing into or through the valve. A valve made according to my improvement is especially adapted for use withradiators and prevents the water carried by the steam from passing into the radiator and also permits the flow of steam into the radiator to be regulated, and after the desired flow has once been obtained, the same flow can be had each time the radiator is used.

With these ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will descrlbe its construction in detail, referring by numerals to the accompanying drawing formlng a part of this specification, in which Figure 1, is a side elevation of the valve casing. Fig. 2, a longitudinal sectional view thereof showing the valve plug and other parts thereof. Fig. 3, an end view of the casing. Fig. 4, a face view of the cap. Fig. 5, a side elevation thereof. Fig. 6, a side elevation of the steam filter. Fig. 7, a plan view thereof, and Fig. 8, a perspective view of a steam strainer.

In carrying out my invention as here emthrough which communicates with the valve plug opening 5. This outlet arm and also the inlet portion of the casing are both threaded as indicated by 10. The casing is preferably provided with a flange 11 at the stem end of the casing and this has formed therewith a lug 12 and if found desirable the flanges may be provided with indication marks 13.

In the valve plug opening 5 is mounted the conical valve plug 14 having a longitudinal axial opening 15 leading from the larger or base end thereof to a suitable point intermediate its ends and from said opening 15 leads the outlet 16 which is adapted to register with the outlet 9 of the casing. The smaller end of the valve plug carries a stem 17 on which is mounted a suitable hand operating device such as a wheel 18. On said stem is also mounted a collar 19, the inner face of which engages the end of the casing. This collar has formed therewith, throughout a portion of its circumference, a depending flange 20 which overlies the flange 11 formed with the casing as well as the lug 12, said flange 2O preventing obstructions from coming in contact with the lug 12 as well as the adjustable stop to be hereinafter described. With the flange 20 is produced an inwardly projecting extension '21 forming a groove 22. A set screw 24 passes entirely through the collar and engages a suitable cavity 25 formed in the valve stem 17 thereby reventing the accidental displacement of tie collar with relation to the stem.

27 represents a stop screw threaded through the flange 20 adjacent one end thereof, so that said screw projects into the groove 22 in which is mounted an adjustable stop 26 formed from a strip of spring metal. The adjustable stop 26 is fitted within said groove by cutting the same to the desired length, and the measurements for said stop are obtained by turning the stem 17 until the stop screw 27 contacts with the lug 12, after which the stem 17 is turned in the opposite direction, any desired distance and stopped when the predetermined opening is reached which is indicated by the indication marks 13. lNhen the stem 17 is in the last named position the distance between the stop screw 28 and the lug 12 is measured and the adjustable stop 26 is cut to fit therebetween.

Then the valve plug 1 1 is turned so that the valve is shut off, the stop screw 27 will be in contact with one side of the lug 12 and stop the valve plug from further movement in that direction. \Vhen the valve plug is opened the same is rotated until the end of the stop 26 contacts with the opposite side of the lug l2 and the valve plug will be stopped in its movement in this direction and the predetermined opening maintained.

In the larger or base end of the valve plug is produced a filter cavity 30 provided with threads 31 and in this cavity is mounted the filter 32. The filter comprises an annular body 33 provided with threads 34 and a flange 23, said body and flange having vertical grooves or channels 35. The body carries a neck 36 which in turn carries an approximately hemispherical head 37 having grooves or channels 38 therein which follow the curvature of the head and meet at the apex or pole thereof. WVhen the filter is mounted in its position, the head will lie across the opening 15 in the valve plug and engage the walls thereof so that the only passage ways from the supply pipe to the valve plug are through the channels 35 and 38. The body of the filter has a chamber 39 produced therein and when the steam is flowing to the valve it will come in contact with the filter and because of the arcuate surface of the chamber 39, the steam will be deflected and any water contained therein will run back into the supply pipe while the drier steam will pass around ends and is slit longitudinally to produce 7 openings 41. Said strainer is mounted. in the opening 15 in the valve plug and lies across the outlet 16.

In practice, the channels 35 in the body of the filter should 'be the largest openings, the channels 38 on the head of the filter, smaller, and the openings 41 in the strainer, smallest, so that if the water passes through one set of openings it will not pass through the second or third set.

Of course I do not wish to be limited to the exact details of construction as here shown as these may be varied within the limits of the appended claims without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new and useful, is-

1. In combination with a valve consisting of a valve casing and a valve plug, said valve plug having a single passage Way therethrough and provided with a filter opening in its base end, said filter opening being provided with threads, a filter comprising a body and a neck and an approximately hemispherical head, said body being provided with threads for. mounting the filter in the filter opening, said body also having a chamber in the outer end acting as a deflector, and vertical channels disposed around the outer circumference, the head being provided with channels in its arcuate face, said channels forming the only passage ways to the interior of the valve plug when the filter is in position.

2. In combination with a valve consisting of a valve casing and a valve plug, said valve plug having a single passage way therethrough and provided with a filter opening in its base end, said filter opening being provided with threads, a filter comprising a body having vertical channels, said body being mounted in the filter opening, a neck carried by the body and a head carried by said neck, said head having channels therein, the channels in the body and head forming the only passage to the valve plug opening when the head is disposed across said openmg. 7

3. In combination with a valve consisting of a valve casing and a valve plug, said 'valve plug having a passage way therein and having an outlet leading therefrom, and aflixed my signature in the presence of two further provided at its base end With a filter subscribing Witnesses.

openin a strainer mounted in the passage Way oir erlying the outlet therefrom, and a EDWARD FITZGERALD 5 steam filter mounted in the filter opening Witnesses:

as specified. JOSEPH W. SANDS,

In testimony whereof, I have hereunto M. P. WILLIAMSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

